U.S. patent number 7,717,105 [Application Number 11/649,240] was granted by the patent office on 2010-05-18 for gas radiation burner.
This patent grant is currently assigned to LG Electronics Inc.. Invention is credited to Yang Ho Kim, Young Soo Kim, Dae Rae Lee, Jung Wan Ryu, Dae Bong Yang.
United States Patent |
7,717,105 |
Lee , et al. |
May 18, 2010 |
Gas radiation burner
Abstract
A gas radiation burner for improving the efficiency of burning
by promoting mixing of fuel gas and air is disclosed. The gas
radiation burner includes a gas supply member for injecting gas, at
least one mixing pipe for suctioning air along with the gas
injected from the gas supply member to produce mixture gas and
injecting the produced mixture gas, a burner pot for receiving the
mixture gas supplied from the mixing pipe, a burner mat mounted at
a top of the burner pot and adapted to emit radiation heat that is
generated as the mixture gas supplied from the burner pot burns on
the burner mat, and a burner housing located on a top of the burner
mat and defining a burning chamber therein. The mixing pipe is
connected to a predetermined position of a lateral portion of the
burner pot such that the mixture gas supplied from the mixing pipe
flows along an inner peripheral surface of the burner pot.
Inventors: |
Lee; Dae Rae (Gimhae-si,
KR), Ryu; Jung Wan (Changwon-si, KR), Yang;
Dae Bong (Jinhae-si, KR), Kim; Young Soo
(Changwon-si, KR), Kim; Yang Ho (Changwon-si,
KR) |
Assignee: |
LG Electronics Inc. (Seoul,
KR)
|
Family
ID: |
38444420 |
Appl.
No.: |
11/649,240 |
Filed: |
January 4, 2007 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20070202451 A1 |
Aug 30, 2007 |
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Foreign Application Priority Data
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Jan 6, 2006 [KR] |
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10-2006-0001792 |
Jan 20, 2006 [KR] |
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10-2006-0006427 |
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Current U.S.
Class: |
126/39J; 431/354;
431/328; 431/173; 431/170; 126/39K |
Current CPC
Class: |
F24C
3/047 (20130101); F24C 3/067 (20130101); F23D
14/64 (20130101); F23D 14/14 (20130101); Y02B
40/00 (20130101); F23D 2900/00003 (20130101) |
Current International
Class: |
F23D
14/12 (20060101); F23D 14/14 (20060101); F24C
3/04 (20060101) |
Field of
Search: |
;431/328,329,278-285,354,173,170 ;126/39E,39H,39N,39J,39K |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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1547923 |
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Nov 2004 |
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CN |
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2 231 950 |
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Nov 1990 |
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GB |
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62-155428 |
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Jul 1987 |
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JP |
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9-178126 |
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Jul 1997 |
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JP |
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2001-41421 |
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Feb 2001 |
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JP |
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1997-63252 |
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Dec 1997 |
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KR |
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2003-76248 |
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Sep 2003 |
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KR |
|
Primary Examiner: Price; Carl D
Attorney, Agent or Firm: Birch, Stewart, Kolasch &
Birch, LLP
Claims
What is claimed is:
1. A gas radiation burner comprising: a gas supply member for
injecting gas; a plurality of mixing pipes for suctioning air along
with the gas injected from the gas supply member to produce mixture
gas and injecting the produced mixture gas; a burner pot for
receiving the mixture gas supplied from the mixing pipes; a burner
mat mounted at a top of the burner pot and adapted to emit
radiation heat that is generated as the mixture gas supplied from
the burner pot burns on the burner mat; a burner housing located on
a top of the burner mat and defining a burning chamber therein; and
at least one flow promotion member for promoting flow of the
mixture gas supplied from each mixing pipe into the burner pot,
wherein the flow promotion member is a fan provided in the vicinity
of an outlet end of each mixing pipe, wherein the mixing pipes are
connected to a predetermined position of a lateral portion of the
burner pot such that the mixture gas supplied from the mixing pipes
flows along an inner peripheral surface of the burner pot, and
wherein the plurality of mixing pipes are connected to the burner
pot, so as to be symmetrical about the burner pot.
2. The gas radiation burner according to claim 1, wherein the
mixing pipes are connected to the burner pot in the direction of a
tangent.
3. The gas radiation burner according to claim 2, wherein the
mixing pipes are integrally formed with the burner pot.
4. The gas radiation burner according to claim 1, wherein the
plurality of mixing pipes supply the mixture gas to flow in a
direction.
Description
This application claims the benefit of the Korean Patent
Application No. 10-2006-0001792 filed on Jan. 6, 2006 and No.
10-2006-0006427 filed on Jan. 20, 2006, which is hereby
incorporated by reference as if fully set forth herein.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a gas radiation burner, and more
particularly, to a gas radiation burner capable of improving the
efficiency of burning by promoting mixing of fuel gas and air.
2. Discussion of the Related Art
In general, a gas radiation burner is a burner in which an object
to be heated is heated and cooked by radiation energy that is
generated when a radiator is heated by burning of mixture gas
produced by mixing fuel gas and air.
Hereinafter, a conventional gas radiation burner will be described
with reference to the accompanying drawings.
FIG. 1 is a plan view schematically illustrating a conventional gas
radiation burner, and FIG. 2 is a sectional view taken along the
line I-I of FIG. 1.
As shown in FIGS. 1 and 2, the conventional gas radiation burner
basically includes a mixing pipe 1, a burner pot 2, a burner mat 3,
a burner housing 4, and a glass 5.
Here, the mixing pipe 1 internally defines a space in which fuel
gas and air are introduced and mixed primarily. The fuel gas is
injected from a nozzle 1a and introduced into the mixing pipe 1.
The air is introduced into the mixing pipe 1 by an injection
pressure of the fuel gas and mixed, along with the fuel gas, in the
mixing pipe 1, so as to produce mixture gas.
The burner pot 2 is connected to the mixing pipe 1, and internally
defines a space in which the mixture gas from the mixing pipe 1 is
introduced and burns. The burner pot 2 has a function of
accomplishing more uniform mixing of the fuel gas and the air
contained in the mixture gas that is introduced from the mixing
pipe 1 into the burner pot 2.
The burner mat 3 is mounted on a seating portion 2a that is formed
at a top of the burner pot 2. The burner mat 3 has a function of
emitting radiation energy that is accumulated in the burner mat 3
as the mixture gas burns on the burner mat 3.
The burner housing 4 serves as a body of the gas radiation burner.
The burner pot 2 is coupled to the burner housing 4.
In this case, the burner housing 4 has a circular opening 4a for
passage of the radiation energy emitted from the burner mat 3.
The glass 5 is mounted at a top of the burner housing 4. An object
to be heated is put on the glass 5.
Meanwhile, the burner housing 4 has an exhaust duct F serving as a
passage for drawing out exhaust gas that is produced as the mixture
gas burns.
The operation of the gas radiation burner having the above
described configuration will now be described.
First, if an object to be heated is put on an upper surface of the
glass 5 and the gas radiation burner is operated by a user, fuel
gas and air are introduced into and mixed in the mixing pipe 1. The
resulting mixture gas is supplied into the burner pot 2 and ejected
through the burner mat 3.
Simultaneously, the mixture gas is ignited by a predetermined
igniter (not shown) such that the mixture gas burns on the burner
mat 3. As the mixture gas burns, heat is accumulated in the burner
mat 3, thus causing the burner mat 3 to emit radiation energy.
Thereby, the object to be heated, which is put on the upper surface
of the glass 5, is able to be heated and cooked by the radiation
energy generated as stated above.
In this case, exhaust gas, which is produced after burning of the
mixture gas, has a temperature of approximately 500 degrees Celsius
or more. The exhaust gas is discharged through the exhaust duct F
provided in the burner housing 4.
However, the conventional gas radiation burner has problems as
follows.
Firstly, the mixture gas flows straightly upward within the burner
pot 2 and this causes uneven burning of the mixture gas on the
surface of the burner mat 3.
Therefore, there are problems of a degradation in the efficiency of
radiation due to incomplete burning of the mixture gas and an
increase in the amount of exhaust gas.
Secondly, if the mixing pipe 1 has a reduced length due to
installation structural restrictions thereof, the mixing pipe 1 may
cause uneven mixing of fuel gas and air within the mixing pipe 1
and consequently, incomplete burning of the mixture gas. This
causes a further degradation in the efficiency of radiation as well
as a further increase in the amount of exhaust gas.
Thirdly, the conventional gas radiation burner is difficult to be
used as a built-in product.
When the burner pot 2 has a reduced size, more particularly, a
reduced height according to the tendency of built-in home
appliances, the burner pot 2 is difficult to guarantee uniform
mixing of the mixture gas introduced into the burner pot 2 and the
mixture gas cannot be ejected uniformly through the burner mat 3.
This causes incomplete burning of the mixture gas, resulting in a
degradation in the efficiency of radiation as well as an increase
in the amount of exhaust gas.
Fourthly, a variable regulation in the quantity of heat is
impossible because of restrictions in relation with introduction of
the mixture gas into the burner pot 2 and a burning space.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a gas radiation
burner that substantially obviates one or more problems due to
limitations and disadvantages of the related art.
An object of the present invention is to provide a gas radiation
burner capable of improving the efficiency of burning of mixture
gas by promoting mixing of fuel gas and air contained in the
mixture gas while enabling a variable regulation in the quantity of
heat.
Additional advantages, objects, and features of the invention will
be set forth in part in the description which follows and in part
will become apparent to those having ordinary skill in the art upon
examination of the following or may be learned from practice of the
invention. The objectives and other advantages of the invention may
be realized and attained by the structure particularly pointed out
in the written description and claims hereof as well as the
appended drawings.
To achieve these objects and other advantages and in accordance
with the purpose of the invention, as embodied and broadly
described herein, a gas radiation burner comprises: a gas supply
member for injecting gas; at least one mixing pipe for suctioning
air along with the gas injected from the gas supply member to
produce mixture gas and injecting the produced mixture gas; a
burner pot for receiving the mixture gas supplied from the mixing
pipe; a burner mat mounted at a top of the burner pot and adapted
to emit radiation heat that is generated as the mixture gas
supplied from the burner pot burns on the burner mat; and a burner
housing located on a top of the burner mat and defining a burning
chamber therein, wherein the mixing pipe is connected to a
predetermined position of a lateral portion of the burner pot such
that the mixture gas supplied from the mixing pipe flows along an
inner peripheral surface of the burner pot.
In accordance with another aspect of the present invention, there
is provided a gas radiation burner comprising: a gas supply member
for injecting gas; at least one mixing pipe for suctioning air
along with the gas injected from the gas supply member to produce
mixture gas and injecting the produced mixture gas; a burner pot
for receiving the mixture gas supplied from the mixing pipe; a
burner mat obliquely mounted at a top of the burner pot and adapted
to emit radiation heat that is generated as the mixture gas
supplied from the burner pot burns on the burner mat; and a burner
housing located on a top of the burner mat and defining a burning
chamber therein.
In accordance with yet another aspect of the present invention,
there is provided a gas radiation burner comprising: a gas supply
member for injecting gas; a plurality of mixing pipes for
suctioning air along with the gas injected from the gas supply
member to produce mixture gas and injecting the produced mixture
gas; a burner pot for receiving the mixture gas supplied from the
mixing pipes; a burner mat obliquely mounted at a top of the burner
pot and adapted to emit radiation heat that is generated as the
mixture gas supplied from the burner pot burns on the burner mat;
and a burner housing located on a top of the burner mat and
defining a burning chamber therein, wherein the burner pot defines
a plurality of individual spaces therein, and at least one of the
mixing pipes is connected to each of the plurality of spaces.
It is to be understood that both the foregoing general description
and the following detailed description of the present invention are
exemplary and explanatory and are intended to provide further
explanation of the invention as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings, which are included to provide a further
understanding of the invention and are incorporated in and
constitute a part of this application, illustrate embodiment(s) of
the invention and together with the description serve to explain
the principle of the invention. In the drawings:
FIG. 1 is a plan view schematically illustrating a conventional gas
radiation burner;
FIG. 2 is a sectional view taken along the line I-I of FIG. 1;
FIG. 3 is a perspective view illustrating a gas oven having a gas
radiation burner according to an embodiment of the present
invention;
FIG. 4 is a sectional view illustrating a gas radiation burner
according to a preferred first embodiment of the present
invention;
FIG. 5 is a plan view schematically illustrating the connecting
structure of mixing pipes and a burner pot shown in FIG. 4;
FIG. 6 is a plan view schematically illustrating important parts of
a gas radiation burner according to a second embodiment of the
present invention;
FIG. 7 is a plan view schematically illustrating important parts of
a gas radiation burner according to a third embodiment of the
present invention;
FIG. 8 is a sectional view schematically illustrating important
parts of a gas radiation burner according to a fourth embodiment of
the present invention;
FIG. 9 is a sectional view schematically illustrating important
parts of a gas radiation burner according to a fifth embodiment of
the present invention;
FIG. 10 is a plan view schematically illustrating the structure of
a burner pot shown in FIG. 9;
FIG. 11 is a sectional view schematically illustrating a gas
radiation burner according to a sixth embodiment of the present
invention; and
FIG. 12 is a plan view schematically illustrating the structure of
a burner pot shown in FIG. 11.
DETAILED DESCRIPTION OF THE INVENTION
Reference will now be made in detail to the preferred embodiments
of the present invention, examples of which are illustrated in the
accompanying drawings. Wherever possible, the same reference
numbers will be used throughout the drawings to refer to the same
or like parts.
Hereinafter, a gas radiation burner according to the present
invention will be described in more detail with reference to the
accompanying drawings.
First, a gas oven, in which the gas radiation burner according to
the present invention is employed, will be described with reference
to FIG. 3. FIG. 3 is a view illustrating an example of a built-in
type gas oven.
As shown in the drawing, the gas oven includes a body 100, an oven
unit 110, a grill unit 112, and a top burner unit 114 having a
plurality of gas radiation burners 130.
The body 100 defines the outer appearance of the gas oven. The oven
unit 110 is located in a lower region of the body 100 and has a
space in which food is cooked by convection heat from a plurality
of heaters (not shown) that are mounted in the oven unit 110. The
grill unit 112 has a space in which food of, for example, fish and
meat, is cooked by radiation heat mainly.
The gas radiation burners 130 are provided on a top of the body 100
and serve as means for cooking food by heating a container in which
the food is received. A glass (as designated by reference numeral
137, See FIG. 4) is fitted in an upper opening of each radiation
burner 130. The glass is mainly formed by a ceramic material.
FIG. 4 is a sectional view illustrating a gas radiation burner
according to a preferred first embodiment of the present invention,
which is suitable for being applied in the gas oven of FIG. 3. FIG.
5 is a plan view schematically illustrating the connecting
structure of mixing pipes and a burner pot shown in FIG. 4.
Referring to FIGS. 4 and 5, each gas radiation burner 130 according
to the present embodiment includes a nozzle 131, mixing pipes 132
and 133, a burner pot 134, a burner mat 135, a burner housing 136,
and the glass 137. If fuel gas is injected, through the nozzle 131,
into the mixing pipes 132 and 133 along with air, the fuel gas and
the air are mixed in the mixing pipes 132 and 133. The resulting
mixture gas is supplied into the burner pot 134. As the mixture gas
supplied from the burner pot 134 burns on the burner mat 135, the
burner mat 135 is heated to thereby emit radiation heat. The burner
housing 136 internally defines a burning chamber and the glass 137
is mounted at a top of the burner housing 136.
In the gas radiation burner 130 according to the present embodiment
having the above described configuration, the burner pot 134, the
burner mat 135, the burner housing 136, and the glass 137 have the
same functions as those of a conventional gas radiation burner, and
only the mixing pipes 132 and 133 have differentiated features from
those of the conventional gas radiation burner. Accordingly, the
following description focus on the mixing pipes.
As shown in FIGS. 4 and 5, the mixing pipes 132 and 133 of the gas
radiation burner 130 according to the present embodiment may be
connected to predetermined positions of a lateral portion of the
burner pot 134. Preferably, the mixing pipes 132 and 133 are
installed such that the mixture gas supplied from the mixing pipes
132 and 133 flows along an inner peripheral surface of the burner
pot 134. For this, preferably, the mixing pipes 132 and 133 are
connected to the burner pot 134 such that the mixing pipes 132 and
133 are located adjacent to the inner peripheral surface of the
burner pot 134. More preferably, the mixing pipes 132 and 133 are
connected to the burner pot 134 in the direction of a tangent. With
this configuration, as shown in FIG. 5, if the mixture gas is
introduced, through the mixing pipes 132 and 133, into the burner
pot 134, the fuel gas and the air of the introduced mixture gas are
able to be more efficiently mixed with each other while flowing
along the inner peripheral surface of the burner pot 134. Here,
although the mixing pipes 132 and 133 may be connected to the
burner pot 134 after being prefabricated separately, it is
preferable that the mixing pipes 132 and 133 be integrally formed
with the burner pot 134.
The gas radiation burner 130 according to the present embodiment
includes two mixing pipes of, for example, a first mixing pipe 132
and a second mixing pipe 133, but the present invention is not
limited thereto. That is to say, a single mixing pipe may be
provided, or two or more mixing pipes may be provided.
In the case where two or more mixing pipes are provided like the
present embodiment, as shown in FIG. 5, the first and second mixing
pipes 132 and 133 are preferably arranged such that the mixture gas
supplied from the mixing pipes 131 and 132 flows, along the inner
peripheral surface of the burner pot 134, in a direction. If the
mixture gas supplied from the mixing pipe 131 has a different flow
direction from that supplied from the mixing pipe 132, there is a
problem in that the overall mixture gas supplied into the burner
pot 134 has a degradation in the efficiency of flow. More
preferably, as shown in FIG. 5, the first and second mixing pipes
132 and 133 may be connected to the burner pot 134 such that the
first and second mixing pipes 132 and 133 are symmetrical with each
other. With the symmetrical arrangement of the mixing pipes 132 and
133, the mixture gas supplied into the burner pot 134 can flow more
efficiently along the inner peripheral surface of the burner pot
134. This has the effect of promoting mixing of the fuel gas and
the air.
In conclusion, the gas radiation burner 130 according to the
present embodiment has the effect of promoting more uniform mixing
of the fuel gas and the air contained in the mixture gas that is
supplied from the first and second mixing pipes 132 and 133 into
the burner pot 134 by allowing the mixture gas to flow along the
inner peripheral surface of the burner pot 20. Increasing the
mixing uniformity of the mixture gas causes uniform and stable
burning of the mixture gas on a surface of the burner mat 135,
resulting in an improvement in the efficiency of radiation and
reducing the amount of exhaust gas.
Further, with the adoption of a multiple injection structure using
the first mixing pipe 132 and the second mixing pipe 133, it is
possible to realize a high Turn Down Ratio (TDR) and to achieve
uniform mixing of the mixture gas even when the burner pot 134 has
a reduced size (i.e. a reduced height). Accordingly, the gas
radiation burner 130 according to the present embodiment is
suitable for being applied in a built-in product.
Now, a second embodiment of the gas radiation burner according to
the present invention will be described with reference to FIG. 6.
FIG. 6 is a plan view schematically illustrating important parts of
the gas radiation burner according to the second embodiment of the
present invention. As compared to that of the previously described
embodiment, the gas radiation burner 130 according to the present
embodiment has a difference in that a plurality of first mixing
pipes 132 and a plurality of second mixing pipes 133 are provided
and mixing promotion members 140 are further provided, but other
configurations and reference numerals refer to those of the
previously described embodiment.
As shown in FIG. 6, the gas radiation burner 130 according to the
present embodiment may further include the plurality of first
mixing pipes 132 and the plurality of mixing pipes 133, which are
connected to predetermined positions of the lateral portion of the
burner pot 134, and the mixing promotion members 140, respectively,
located near the outlet side of the first mixing pipes 132 and near
the outlet side of the second mixing pipes 133, the mixing
promotion members 140 serving to promote the mixing of the fuel gas
and the air of the mixture gas supplied into the burner pot 134.
The mixing promotion members 140 may be installed to protrude
upward from an inner bottom surface of the burner pot 134 by a
predetermined length.
Preferably, the mixing promotion members 140 are arranged,
respectively, between the plurality of first mixing pipes 132 and
between the plurality of second mixing pipes 133. With this
arrangement, the mixture gas, supplied from the first mixing pipes
132 and the second mixing pipes 133, is able to flow more
efficiently by the mixing promotion members 140 and this has the
effect of promoting the mixing of the fuel gas and the air of the
mixture gas supplied into the burner pot 134.
More preferably, the mixing promotion members 140 have a streamline
shape corresponding to a curved direction of the inner peripheral
surface of the burner pot 134. With this configuration, the mixture
gas, supplied from the first mixing pipes 132 and the second mixing
pipes 133, is able to flow more efficiently along the inner
peripheral surface of the burner pot 134 and along the mixing
promotion members 140. This has the effect of promoting more
uniform mixing of the fuel gas and the air.
In conclusion, with the adoption of the mixing promoting members
140, the gas radiation burner 130 according to the present
embodiment can achieve more efficient flow of the mixture gas
supplied into the burner pot 134 as compared to the above described
first embodiment, and can promote more uniform mixing of the fuel
gas and the air.
Next, a third embodiment of the gas radiation burner according to
the present invention will be described with reference to FIG. 7.
FIG. 7 is a plan view schematically illustrating important parts of
the gas radiation burner according to the third embodiment of the
present invention. As compared to those of the previously described
embodiments, the gas radiation burner 130 according to the present
embodiment has a difference in that a plurality of mixing pipes are
connected to the burner pot 134 so as to be symmetrical with one
another and flow promotion members 150 are further provided, but
other configurations and reference numerals refer to those of the
previously described embodiments.
As shown in FIG. 7, the gas radiation burner 130 according to the
present embodiment may further include four mixing pipes 151, 152,
153, and 154, which are connected to the burner pot 134 so as to be
symmetrical with one another, and the flow promotion members 150
for promoting the flow of the mixture gas discharged from the four
mixing pipes.
Preferably, the flow promotion members 150 are fans having one side
for suctioning the mixture gas that is supplied from the four
mixing pipes into the burner pot 134 and the other side for
discharging the suctioned mixture gas. More preferably, the fans
are provided, respectively, in the vicinity of outlet ends of the
respective mixing pipes. With this configuration, if the mixture
gas is supplied from the mixing pipes into the burner port 134, the
mixture gas is forcibly moved by the flow promotion members 150,
i.e. the fans, thereby achieving more efficient flow of the mixture
gas. This consequently promotes more uniform mixing of the fuel gas
and the air of the mixture gas.
Although the gas radiation burner 130 according to the present
embodiment includes four mixing pipes, the present invention has no
limit in the number of the mixing pipes. Also, similar to the above
described first embodiment, preferably, the plurality of mixing
pipes are arranged such that the mixture gas supplied from the
mixing pipes flows in a direction along the inner peripheral
surface of the burner pot 134.
A fourth embodiment of the gas radiation burner according to the
present invention will now be described with reference to FIG. 8.
FIG. 8 is a sectional view schematically illustrating important
parts of the gas radiation burner according to the fourth
embodiment of the present invention. As compared to the above
described embodiments, the gas radiation burner 130 according to
the present embodiment has a difference in relation with
configurations of the burner pot 134 and the burner mat 135, but
other configurations and reference numerals refer to those of the
previously described embodiments.
As shown in FIG. 8, the gas radiation burner 130 according to the
fourth embodiment of the present invention may include a burner mat
163, which is obliquely mounted at a top of a burner pot 161. Here,
the burner pot 161 may be perforated with a top opening 162, which
defines an inclined plane for allowing the burner mat 163 to be
obliquely mounted to the burner pot 161.
The burner pot 161 is coupled to a burner housing 164 after being
previously coupled with the burner mat 163. In this case,
preferably, a coupling region of the burner pot 161 adjacent to the
glass 137 has a small coupling force, whereas an opposite coupling
region of the burner pot 161 (the right side of FIG. 8) has a large
coupling force. This is to substantially prevent the coupling force
of the burner pot 161 from being transmitted to the glass 137 and
consequently, to prevent deformation of the glass 137. Of course,
it will be appreciated that one side of the burner pot 161 may be
directly coupled to the glass 137 and the other side of the burner
pot 161 may be coupled to the burner housing 164.
In conclusion, as a result of obliquely installing the burner mat
130 such that one side of the burner pot 161 is located close to
the glass 137, the gas radiation burner 130 according to the
present embodiment has the effect of reducing a height difference
between the glass 137 and the burner pot 161.
A fifth embodiment of the gas radiation burner according to the
present invention will be described with reference to FIGS. 9 and
10. FIG. 9 is a sectional view schematically illustrating important
parts of the gas radiation burner according to the fifth embodiment
of the present invention. FIG. 10 is a plan view schematically
illustrating the structure of a burner pot shown in FIG. 9. As
compared to the above described first to third embodiments, the gas
radiation burner 130 according to the present embodiment has a
difference only in relation with the burner pot 134, but other
configurations and reference numerals refer to those of the first
to third embodiments.
The gas radiation burner 130 according to the fifth embodiment of
the present invention employs a burner pot 170 having a plurality
of individual spaces, and a plurality of mixing pipes may be
connected to the plurality of individual spaces, respectively, to
supply the mixture gas into the individual spaces. In this case,
the mixing pipes may be controlled to selectively supply the
mixture gas into the corresponding individual spaces on the basis
of a desired quantity of heat required by an object to be
heated.
Alternatively, a plurality of mixing pipes may be connected to each
of the individual spaces. Preferably, the number of the mixing
pipes, which are connected to a large-size space, is greater than
that of the mixing pipes which are connected to a small-size space.
This is to supply an appropriate amount of mixture gas depending on
the size of each space.
Although the burner pot 170 according to the present embodiment may
include the plurality of individual spaces, for the sake of easy
explanation and illustration, the embodiment shown in FIGS. 9 and
10 employs only two spaces defined by an inner burner pot 171 and
an outer burner pot 172.
As shown in FIGS. 9 and 10, the burner pot 170 according to the
present embodiment may include the inner burner pot 171 for
defining a predetermined space in the center of the burner pot 170,
and the outer burner pot 172 provided around the inner burner pot
171 for defining a space separately from the space defined by the
inner burner pot 171. The gas radiation burner 130 according to the
present embodiment may further include an inner mixing pipe 174 for
supplying the mixture gas into the inner burner pot 171, and an
outer mixing pipe 173 for supplying the mixture gas into the outer
burner pot 172. Of course, it will be appreciated that a plurality
of inner mixing pipes 174 and a plurality of outer mixing pipes 173
may be provided, respectively.
Preferably, the inner burner pot 171 has a shape corresponding to
that of the outer burner pot 172. Specifically, when the outer
burner pot 172 has a circular shape, the inner burner pot 171 may
also have the same circular shape and be provided inside the outer
burner pot 172. In this case, more preferably, the rim of the inner
burner pot 171 is spaced apart from the rim of the outer burner pot
172 by a predetermined distance, to obtain a space sufficient for
the flow of the mixture gas in the outer burner pot 172 as well as
a space sufficient for the flow of the mixture gas in the inner
burner pot 171.
The inner and outer mixing pipes 174 and 173 may be coupled to
predetermined positions of the lateral portions of the inner and
outer burner pots 171 and 172, respectively, such that the mixture
gas flows along the inner peripheral surfaces of the inner and
outer burner pots 171 and 172. For this, preferably, the inner
mixing pipe 174 may be connected to the inner burner pot 171 such
that the inner mixing pipe 174 is located adjacent to the inner
peripheral surface of the inner burner pot 171, and the outer
mixing pipe 173 may be connected to the outer burner pot 172 such
that the outer mixing pipe 173 is located adjacent to the inner
peripheral surface of the outer burner pot 172. More preferably,
the inner and outer-mixing pipes 174 and 173 are connected to the
inner and outer burner pots 171 and 172, respectively, in the
direction of a tangent. Thereby, the mixture gas supplied from the
inner and outer mixing pipes 174 and 173 are able to flow
efficiently along the inner peripheral surfaces of the inner and
outer burner pots 171 and 172.
Generally, the outer burner pot 172 has a larger interior space
than that of the inner burner pot 171. Therefore, it is preferable
that the number of the outer mixing pipe 173 connected to the outer
burner pot 172 be greater than that of the inner mixing pipe 174
connected to the inner burner pot 171. This is to achieve uniform
burning of the mixture gas on the surface of the burner mat 135. If
a plurality of outer mixing pipes 173 are provided, as shown in
FIG. 10, the mixture gas discharged from the outer mixing pipes 173
is supplied in a direction along the inner peripheral surface of
the outer burner pot 172. More preferably, the plurality of outer
mixing pipes 173 may be connected to the outer burner pot 172, so
as to be symmetrical with one another.
With the present embodiment having the above described
configuration, the outer mixing pipe 173 and the inner mixing pipe
174 may be controlled to selectively supply the mixture gas
depending on a desired quantity of heat required by an object to be
heated. For example, if the object to be heated requires a small
quantity of heat, the mixture gas is supplied into the inner burner
pot 171 only through the inner mixing pipe 174 such that the burner
mat 135 has a small heating surface area. Conversely, if the object
to be heated requires a large quantity of heat, the mixture gas is
supplied into the inner and outer burner pots 171 and 172 through
both the inner and outer mixing pipes 174 and 173 such that the
burner mat 135 has a large heating surface area.
In conclusion, the gas radiation burner 130 according to the
present embodiment enables a regulation in the heating surface area
of the burner mat 3 where the mixture gas burns and the heat of
burning is accumulated. This has the effect of varying the quantity
of heat to be transferred to an object to be heated.
A sixth embodiment of the gas radiation burner according to the
present invention will be described with reference to FIGS. 11 and
12. FIG. 11 is a sectional view schematically illustrating the gas
radiation burner according to the sixth embodiment of the present
invention, and FIG. 12 is a plan view schematically illustrating
the structure of a burner pot shown in FIG. 11. As compared to the
above fifth embodiment, the gas radiation burner according to the
present embodiment has a difference in the number of the inner and
outer mixing pipes, but other configurations and reference numerals
refer to those of the above fifth embodiment.
As shown in FIGS. 11 and 12, the gas radiation burner 130 according
to the sixth embodiment of the present invention includes a
plurality of inner mixing pipes 174 and a plurality of outer mixing
pipes 173, to achieve a more efficient variation in the quantity of
heat.
In conclusion, the gas radiation burner according to the present
embodiment has the effect of selectively regulating the amount of
mixture gas to be introduced into the outer burner pot 172 and the
amount of mixture gas to be introduced into the inner burner pot
171, for the sake of a variation in the quantity of heat. Also, the
gas radiation burner according to the present embodiment has the
effect of selectively regulating the number of the outer mixing
pipes 173 being operated and the number of the inner mixing pipes
174 being operated, for the sake of a variation in the quantity of
heat. As a result, according to the present embodiment, the
quantity of heat can be regulated with an increased number of
stages, and this accomplishes a more efficient variation in the
quantity of heat.
Here, in the case where the plurality of inner or outer mixing
pipes 174 or 173 are connected to the inner or outer burner pot 171
or 172 such that the inner or outer mixing pipes 174 or 173 are
arranged closely adjacent to one another, as shown in FIG. 12, the
plurality of inner or outer mixing pipes 174 or 173 preferably have
different lengths from one another. This is taken in consideration
of the fact that both the inner and outer burner pots 171 and 172
have a smaller size than that of the overall space of the burner
pot 170. That is to say, the plurality of inner and outer mixing
pipes 174 and 173 having different lengths from one another allow
the mixture gas to be supplied into the inner and outer burner pots
171 and 172 at different positions, thereby accomplishing efficient
flow of the mixture gas in the inner and outer burner pots 171 and
172.
As apparent from the above description, the gas radiation burner
according to the present invention has the following effects.
Firstly, the gas radiation burner can achieve uniform and stable
burning of mixture gas on the surface of a burner mat by promoting
the burning of the mixture gas, resulting in an improvement in the
efficiency of radiation and reducing the amount of exhaust gas.
Secondly, promoting the burning of the mixture gas has the effect
of reducing the amount of carbon monoxide that is generated during
the burning of the mixture gas and also, improving characteristics
of exhaust gas generated during the burning of the mixture gas.
Accordingly, the present invention can result in an outstanding
reduction in the contamination of environment.
Thirdly, a multiple injection structure using a plurality of mixing
pipes can realize a high Turn Down Ratio (TDR), and achieve uniform
mixing of the mixture gas even when a burner pot has a small size
(i.e. a small height). As a result, the gas radiation burner is
suitable for being applied in a built-in product.
Fourthly, it is possible to regulate a heating surface area of the
burner mat where the mixture gas burns and heat generated by the
burning of the mixture gas is accumulated. This consequently
enables a variation in the quantity of heat that will be
transferred to an object to be heated as well as a variation in a
cooking area of the gas radiation burner.
It will be apparent to those skilled in the art that various
modifications and variations can be made in the present invention
without departing from the spirit or scope of the inventions. Thus,
it is intended that the present invention covers the modifications
and variations of this invention provided they come within the
scope of the appended claims and their equivalents.
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